DESCRIPTION Bzgrep is used to invoke the grep on
bzip2-compressed files. All options specified are passed
directly to grep. If no file is speci- fied, then the
standard input is decompressed if necessary and fed to grep.
Otherwise the given files are uncompressed if necessary and
fed to grep.

If bzgrep is invoked as bzegrep or bzfgrep then egrep or
fgrep is used instead of grep. If the GREP environment
variable is set, bzgrep uses it as the grep program to be
invoked. For example: